<template>
  <view>
    <view class="good-list">
      <view v-for="(goods, index) in goodsList" :key="index" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 请求参数对象
        queryObj: {
          query: '',
          cid: '',
          pagenum: 1,
          pagesize: 15
        },
        goodsList: [],
        total: 0,
        // 节流阀
        isloading: false
      };
    },
    onLoad(options) {
      // console.log(options)
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      // console.log(this.queryObj)
      this.getGoodList()
    },
    methods: {
      // 这是获取商品列表数据的方法
      async getGoodList(cb) {
        // 打开节流阀
        this.isloading = true
       const { data: res } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
       // 关闭节流阀
       this.isloading = false
       // 只要数据请求完毕，就立即按需调用cb回调函数
       cb && ab()
       if (res.meta.status !== 200) return uni.$showMsg()
       this.goodsList = [...this.goodsList, ...res.message.goods]
       this.total = res.message.total
      },
      gotoDetail(item) {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
        })
      }
    },
    onReachBottom() {
      if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据没了')
      if (this.isloading) return
      // 让页码值先自增加一
      this.queryObj.pagenum ++
      this.getGoodList()
    },
    // 这是下拉刷新事件
    onPullDownRefresh() {
      // 1. 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []
    
      // 2. 重新发起请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>
